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Question on compression ratios!

Old Oct 7, 2002 | 11:48 PM
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Ok guys and gals. I'm wondering if there was a way to lower the com. ratio of an engine. Form like 10:1 to 9:1 or what ever. Thanks.





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Old Oct 7, 2002 | 11:49 PM
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Yea break your apex seal... :bigok:
Old Oct 7, 2002 | 11:50 PM
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Why would you want to lower your compression?
Old Oct 7, 2002 | 11:52 PM
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put in s4 turbo rotors ofcourse with lower compression you get LESS power. prolly still beat the hell out of a civic though
Old Oct 7, 2002 | 11:55 PM
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I reiterate ...why would you want to lower your compression Kate?
Old Oct 7, 2002 | 11:58 PM
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No guys, not just on a rotary. I was actually thinking of the NSX. It's got a high as hell ratio which makes it very boost unhappy. I'm really thinking about getting an NSX and the guys at the NSX forums are just dumbasses. If I don't find an FD in 2 months I'm going with an NSX. So, down the road I'm gonna be thinking Turbo and wanna know if the engine's ratio can be changed to accomotade high boost. (15-20 PSI)



They have SC's for the NSX but I'm not ready to spend 10k on a 100HP upgrade.



The FD made me a boostjunkie
Old Oct 8, 2002 | 12:01 AM
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i would think you could get lower comp pistons or destroke it some (but i think honda's are really square built = good rod to stroke ratio) prolly thicker head gaskets theres more but i don't know that much BTW i'm no expert im a pizza delivery boy!
Old Oct 8, 2002 | 12:02 AM
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Theres a few ways to do it. First way. Cheap, and probably not something I would do to an NSX. Put 2 or possibly 3 head gaskets on. It moced teh head farther from the block, decreasing compression.



Second, and the better way to go, is get aftermarket pistons with a dish. You might have to look a little, but Im sure somebody sells them for an NSX.
Old Oct 8, 2002 | 12:03 AM
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Kate I thought you said you were borrowing your friends NSX? What gives?
Old Oct 8, 2002 | 12:07 AM
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Originally Posted by Fd3BOOST' date='Oct 7 2002, 09:03 PM
Kate I thought you said you were borrowing your friends NSX? What gives?
I am, but she hates it and I think I wanna buy it. I grew so accustomed to the car. It's really easy to drive and looks hot(IMO). It's expensive I know but not a problem here. It's a 2001 Targa and 6spd.

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